Power is measured in watts (W), energy in joules (J) and time in seconds (s). 1 W = 1 J/s (1 watt is 1 joule per second.) Electrical power can be calculated using the equation.

Power = work done ÷ time taken. is the rate at which energy is transferred or work is done. It has units of watts (W) or joules per second (J/s). The more energy that is transferred per second ...